Police are investigating an ongoing project to reconstruct part of the famous Prague landmark Charles Bridge. A preservationists group called ASKORD last month filed charges over how the reconstruction job is being carried out; they say police have begun questioning witnesses in connection with the matter. ASKORD believe that insufficient research was conducted before the project to renovate the upper parts of Charles Bridge began in 2007, and have also complained that the work is being carried poorly. The conservation association said after they contacted UNESCO in connection with the reconstruction, the UN body called on the Czech ambassador to the organisation to explain what was going on.

The renovation of Charles Bridge, one of Prague’s most significant landmarks, has been hampered by serious mistakes, some of which are irreversible. That’s the verdict of a regional authority on preservation of historical monuments which reviewed the progress of the renovation, and fined Prague City Hall over three million crowns.

The final and most important phase of the renovation, which will involve all pillars and arches of the 515-metre long Gothic bridge, should be finished by 2020.